linux-kernel - [PATCH 5.10 08/26] tty: drop termiox user definitions

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Date:   Fri, 10 Sep 2021 14:30:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 5.10 08/26] tty: drop termiox user definitions

From: Jiri Slaby <jslaby@...e.cz>

commit c762a2b846b619c0f92f23e2e8e16f70d20df800 upstream.

As was concluded in a follow-up discussion of commit e0efb3168d34 (tty:
Remove dead termiox code) [1], termiox ioctls never worked, so there is
barely anyone using this interface. We can safely remove the user
definitions for this never adopted interface.

[1] https://lore.kernel.org/lkml/c1c9fc04-02eb-2260-195b-44c357f057c0@kernel.org/t/#u

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Link: https://lore.kernel.org/r/20210105120239.28031-12-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/uapi/linux/termios.h |   15 ---------------
 1 file changed, 15 deletions(-)

--- a/include/uapi/linux/termios.h
+++ b/include/uapi/linux/termios.h
@@ -5,19 +5,4 @@
 #include <linux/types.h>
 #include <asm/termios.h>
 
-#define NFF	5
-
-struct termiox
-{
-	__u16	x_hflag;
-	__u16	x_cflag;
-	__u16	x_rflag[NFF];
-	__u16	x_sflag;
-};
-
-#define	RTSXOFF		0x0001		/* RTS flow control on input */
-#define	CTSXON		0x0002		/* CTS flow control on output */
-#define	DTRXOFF		0x0004		/* DTR flow control on input */
-#define DSRXON		0x0008		/* DCD flow control on output */
-
 #endif